56223331 has 4 divisors (see below), whose sum is σ = 56349000. Its totient is φ = 56097664.

The previous prime is 56223319. The next prime is 56223353. The reversal of 56223331 is 13332265.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13332265 = 5 ⋅2666453.

It is a cyclic number.

It is not a de Polignac number, because 56223331 - 2¹¹ = 56221283 is a prime.

It is a super-2 number, since 2×56223331² = 6322125897471122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56223296 and 56223305.

It is not an unprimeable number, because it can be changed into a prime (56223311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62161 + ... + 63058.

It is an arithmetic number, because the mean of its divisors is an integer number (14087250).

Almost surely, 2^56223331 is an apocalyptic number.

56223331 is a deficient number, since it is larger than the sum of its proper divisors (125669).

56223331 is a wasteful number, since it uses less digits than its factorization.

56223331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125668.

The product of its digits is 3240, while the sum is 25.

The square root of 56223331 is about 7498.2218558802. The cubic root of 56223331 is about 383.0941534208.

Adding to 56223331 its reverse (13332265), we get a palindrome (69555596).

The spelling of 56223331 in words is "fifty-six million, two hundred twenty-three thousand, three hundred thirty-one".